Catalytic fast pyrolysis of cellulose and biomass to produce levoglucosenone using magnetic SO42−/TiO2–Fe3O4

Lü, Qiang; Ye, Xiaoning; Zhang, Zhibo; Chen, Dong; Zhang, Ying

doi:10.1016/j.biortech.2014.08.075

Cited by 109 publications

(51 citation statements)

References 31 publications

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“…It is also noted that in the catalytic pyrolysis process, the pyrolytic products were firstly detected at the set pyrolysis temperature of 250°C, indicating that the presence of the catalyst lowered the initial devolatilization temperature of the poplar wood to form organic volatile compounds. Similar catalytic effects were also observed in previous studies using other acid catalysts [12,53,54]. Additionally, the five carriers were mechanically mixed with the poplar wood and subjected to Py-GC/MS experiments.…”

Section: Non-catalytic and Catalytic Fast Pyrolysis Of Poplar Wood Anmentioning

confidence: 50%

Selective Production of Levoglucosenone from Catalytic Fast Pyrolysis of Biomass Mechanically Mixed with Solid Phosphoric Acid Catalysts

Zhang

Lü

et al. 2015

Bioenerg. Res.

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Solid phosphoric acid (SPA) catalysts with different carriers were prepared and used for catalytic fast pyrolysis of poplar wood to produce levoglucosenone (LGO), a valuable anhydrosugar derivative that can be used in various organic synthesis applications. Pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) experiments were performed to evaluate the catalytic capabilities of these catalysts under different reaction conditions. The results indicated that SPA catalyst prepared with the SBA-15 carrier exhibited the best catalytic capability for selectively producing LGO. Both the catalytic pyrolysis temperature and catalyst-to-biomass ratio affected the pyrolytic products greatly. The maximal LGO yield reached as high as 8.2 wt% from poplar wood, obtained at the pyrolysis temperature of 300°C and the catalyst-to-biomass ratio of 1. The by-products during the catalytic pyrolysis process were mainly acetic acid (AA) and furfural (FF). In addition, the SPA catalyst possessed better catalytic capability than the liquid phosphoric acid (H 3 PO 4 ) catalyst to produce LGO.

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Section: Non-catalytic and Catalytic Fast Pyrolysis Of Poplar Wood Anmentioning

confidence: 50%

Selective Production of Levoglucosenone from Catalytic Fast Pyrolysis of Biomass Mechanically Mixed with Solid Phosphoric Acid Catalysts

Zhang

Lü

et al. 2015

Bioenerg. Res.

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“…The obtained LGO yields, particularly for H 3 PO 4 ‐impregnated SBA‐15 mesoporous silica, were higher than the yields reported in the literature for different kinds of solid acid catalysts such as solid superacids (e.g. sulfated metal oxides) and bare metal oxides (namely, zirconia, titania, and alumina), and comparable with nanopowder metal oxides …”

Section: Introductioncontrasting

confidence: 52%

Solid phosphoric acid catalysts based on mesoporous silica for levoglucosenone production via cellulose fast pyrolysis

Santander

Álvarez

Gutierrez

et al. 2018

J of Chemical Tech & Biotech

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BACKGROUND Biochemicals are interesting alternatives for biomass valorization owing to their much higher added value compared to biofuels and energy products. Several methods for the production of valuable chemicals such as levoglucosenone (LGO) via thermochemical processes over solid acid catalysts are being investigated due to their important advantages compared to conventional biomass acid impregnation techniques. The present work explores the synthesis of catalytic materials for the production of this platform molecule. RESULTS Aluminum‐loaded SBA‐15 mesoporous silica and the corresponding solid phosphoric acid (SPA) catalysts were prepared, characterized by TEM, FTIR, MAS NMR, NH3‐TPD, N2 adsorption, ICP‐AES and titration of ‘free H3PO4’, and tested in cellulose fast pyrolysis. Post‐synthesis Al deposition on the silica support produced an increase of bio‐oil yield and LGO amount in pyrolysis products. The presence of Al in SPA catalysts led to the formation of aluminum phosphates, decreasing the concentration of H3PO4 species in the surface and therefore the LGO levels. The SPAs presented relatively high LGO levels in the GC–MS detectable liquid products (up to 85 peak area%) which was found to be correlated with the amount of free H3PO4 in the solid catalysts. CONCLUSION Aluminum grafting over SBA‐15 is an effective way to increase the selectivity to the target anhydrosaccharide. In SPAs, the presence of Al reduced the easily leachable H3PO4 amount, which is desirable from the point of view of catalyst stability because deactivation is mainly caused by H3PO4 leaching, but also led to lower levels of LGO in bio‐oil. © 2018 Society of Chemical Industry

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“…Some researchers have produced or extracted LG from bio-oil (Bennett et al 2009;Tessini et al 2011;Lu et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Fractionation of Pyroligneous Acid: The First Step for the Recovery of Levoglucosan

Fang¹,

Li²,

Yi³

et al. 2016

BioResources

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Levoglucosan (LG) obtained from lignocellulosic biomass exhibits great potential as a specific tracer for biomass burning aerosols and as a raw material for synthesizing stereoregular polysaccharides. One potentially viable source of LG is pyroligneous acid (PA). This study investigated the effects of heating temperature on the extraction capability and the chemical composition of distillate and residual fractions. The results demonstrated that vacuum distillation extracted the acids, alcohols, ketones, aldehydes, and other organic matter. When the heating temperature was above 80 °C, the moisture content of the residual fraction was unchanged. The chemical composition of residual fraction was analyzed by gas chromatography-mass spectrometry (GC-MS). The analysis showed that the relative content of the LG, as obtained from the 90 °C distillation temperature, was 75.6%. Thus, it can be used as raw material for subsequent purification.

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Catalytic fast pyrolysis of cellulose and biomass to produce levoglucosenone using magnetic SO42−/TiO2–Fe3O4

Cited by 109 publications

References 31 publications

Selective Production of Levoglucosenone from Catalytic Fast Pyrolysis of Biomass Mechanically Mixed with Solid Phosphoric Acid Catalysts

Selective Production of Levoglucosenone from Catalytic Fast Pyrolysis of Biomass Mechanically Mixed with Solid Phosphoric Acid Catalysts

Solid phosphoric acid catalysts based on mesoporous silica for levoglucosenone production via cellulose fast pyrolysis

Fractionation of Pyroligneous Acid: The First Step for the Recovery of Levoglucosan

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